Modified Canon 450D DSLR for astro-imaging (August 2014)

Here is my most recent prototype of a Peltier-cooled Canon 450D DSLR intended for astro-imaging. The intention was to incorporate improvement into each version. In this particular prototype, the camera is housed in a smaller plastic case, making it more compact, lighter, and more sturdy.

modified_canon_450D_aug_2014
Modified Canon 450D DSLR for astro-imaging (August 2014) mounted on a Sky-Watcher 100ED refractor. View test shot here.

A custom-fabricated aluminum lens mount is used to allow the modified camera to accept standard Canon lenses and T-adapters. A Baader UV-IR filter is used to optimize sensitivity to H-alpha wavelengths, which also serves as the sealed chamber’s optical window. During operation, sensor temperature drops to 30 degrees C below ambient. To avoid dew from condensing on the optical window, coils of fine nichrome wire were used.

Dimensions: 16 cm x 12 cm x 7 cm case with 7.5 cm x 7 cm x 6 cm heat sink protruding on one side
Weight: approximately 1250 grams
Temperature: up to 30 deg C below ambient
Power supply: 12V 12A for the Peltier module, 8.4V 1.5A for the camera

To view other my other DSLR modification projects, follow the links below:
August 2014 Modified Canon 450D DSLR for Astro-imaging (improved sealed chamber prototype)
March 2014 Modified Canon 450D DSLR for Astro-imaging (sealed chamber prototype)
February 2014 Modified Canon 1000D DSLR (Baader BCF filter replacement)
December 2013 Modified Canon 450D DSLR for Astro-imaging (custom-fabricated lens mount)
November 2013 Modified Canon 450D DSLR for  Astro-imaging (sealed chamber prototype)
February 2013 Modified Canon 450D DSLR for Astro-imaging

For DIY astronomy projects useful for astrophotography, click here.
For tutorials on how to get started with astrophotography, click here.
To visit my astrophoto gallery, click here.
To subscribe to this site, click here.

© Anthony Urbano (Manila, Philippines)

3 thoughts on “Modified Canon 450D DSLR for astro-imaging (August 2014)

  1. Hi,

    Great post and I would like to build it myself. Right now i’m building a powerbox to connect my mount and dew heaters. So, in advance, I would like to know how much power usage you have with the peltier cooling. You use only a 12v , 12Ah battery for the peltier? How long can you feed the peltier cooling?

    Thank you!

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